Table 7.

ROIs showing a greater activation increase from pre-training to post-training during the eWM task after eWM training compared with placebo training for n-back = 5 trials^a

Brain region	L/R	Placebo training		eWM training		F(1,31)
		5-back pre-training	5-back post-training	5-back pre-training	5-back post-training
OFC	R	−0.08 (0.17)	−0.11 (0.26)	−0.06 (0.26)	0.27 (0.25)	8.39*
Lateral PFC (inferior frontal gyrus)	R	0.08 (0.19)	0.00 (0.35)	−0.13 (0.24)	0.02 (0.24)	5.07**
Inferior parietal cortex	R	0.16 (0.35)	0.33 (0.52)	0.00 (0.39)	0.30 (0.43)	4.91**

^aBOLD activation for the ROIs, which showed a significantly different pre-training to post-training activation change related to task difficulty in the eWM training group compared with the placebo training group at the level of n-back = 5.

*p < 0.01.

**p < 0.05.